XDIMMER(1) - General Commands Manual
NAME
xdimmer - dim the screen and/or the keyboard backlight when idle or when ambient light changes
SYNOPSIS
xdimmer [-a] [-d] [-k] [-n] [-p percent] [-s steps] [-t timeout]
DESCRIPTION
xdimmer waits timeout number of seconds and if no keyboard or mouse input is detected, the screen backlight is dimmed to percent in steps steps, unless the -n option was specified. Once keyboard or mouse input is detected, the screen backlight is restored to its previous brightness value.
On OpenBSD, if the -k option is used, the keyboard backlight is also dimmed to zero and restored upon movement via the wscons(4) interface.
Also on OpenBSD, if the -a option is used and an ambient light sensor device is located via sysctl(8), screen backlight (and keyboard backlight if -k is used) is dimmed or brightened based on lux readings.
OPTIONS
-a
Change backlights according to ambient light sensor lux readings. Currently only supported on OpenBSD.
-d
Print debugging messages to stdout.
-k
Affect the keyboard backlight as well as the screen backlight. Currently only supported on OpenBSD.
-n
Do not adjust the screen backlight (can only be used if -k is used).
-p percent
Absolute brightness value to which the backlight is dimmed. The default is
10
percent.
-s steps
Number of steps to take while decrementing backlight. The default is
20
steps.
-t timeout
Number of seconds to wait without receiving input before dimming. The default is
120
seconds.
AUTHORS
xdimmer was written by joshua stein <jcs@jcs.org>.
OpenBSD 6.2 - September 21, 2017